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(8x8-32-13:k)-(40-2x10)=3x3

Răspuns :

(64-32-13:k)-(40-20)=9 (32-13:k)-20=9 32-13:k=20+9 32-13:k=29 13:k=32-29 13:k=3 Sper ca te.am ajutat
(64-32-13:k)-40-20=9
64-32-13:k-40=9+20=29
64-32-13:k=29+40=69
32-13:k=69+64= 133
13:k=133+32=165
k=2145